111308838457 has 4 divisors (see below), whose sum is σ = 112833617140. Its totient is φ = 109784059776.

The previous prime is 111308838419. The next prime is 111308838467. The reversal of 111308838457 is 754838803111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44990227881 + 66318610576 = 212109^2 + 257524^2 .

It is a cyclic number.

It is not a de Polignac number, because 111308838457 - 2¹⁵ = 111308805689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111308838457.

It is not an unprimeable number, because it can be changed into a prime (111308838467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 762389232 + ... + 762389377.

It is an arithmetic number, because the mean of its divisors is an integer number (28208404285).

Almost surely, 2^111308838457 is an apocalyptic number.

It is an amenable number.

111308838457 is a deficient number, since it is larger than the sum of its proper divisors (1524778683).

111308838457 is an equidigital number, since it uses as much as digits as its factorization.

111308838457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1524778682.

The product of its (nonzero) digits is 645120, while the sum is 49.

The spelling of 111308838457 in words is "one hundred eleven billion, three hundred eight million, eight hundred thirty-eight thousand, four hundred fifty-seven".